/*****************************************************************************
 *
 * This MobilityDB code is provided under The PostgreSQL License.
 * Copyright (c) 2016-2024, Université libre de Bruxelles and MobilityDB
 * contributors
 *
 * MobilityDB includes portions of PostGIS version 3 source code released
 * under the GNU General Public License (GPLv2 or later).
 * Copyright (c) 2001-2024, PostGIS contributors
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose, without fee, and without a written
 * agreement is hereby granted, provided that the above copyright notice and
 * this paragraph and the following two paragraphs appear in all copies.
 *
 * IN NO EVENT SHALL UNIVERSITE LIBRE DE BRUXELLES BE LIABLE TO ANY PARTY FOR
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
 * LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
 * EVEN IF UNIVERSITE LIBRE DE BRUXELLES HAS BEEN ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * UNIVERSITE LIBRE DE BRUXELLES SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON
 * AN "AS IS" BASIS, AND UNIVERSITE LIBRE DE BRUXELLES HAS NO OBLIGATIONS TO
 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
 *
 *****************************************************************************/

#ifndef __TEMPORAL_ANALYTICS_H__
#define __TEMPORAL_ANALYTICS_H__

/* MEOS */
#include <meos.h>

/*****************************************************************************/

typedef enum
{
  FRECHET,
  DYNTIMEWARP,
  HAUSDORFF
} SimFunc;

/**
 * Struct for storing the state that persists across multiple calls generating
 * the path
 */
typedef struct
{
  bool done;
  int i;
  int size;
  Match *path;
} SimilarityPathState;

/*****************************************************************************/

extern double temporal_similarity(const Temporal *temp1, const Temporal *temp2,
  SimFunc simfunc);
extern Match *temporal_similarity_path(const Temporal *temp1,
  const Temporal *temp2, int *count, SimFunc simfunc);

/*****************************************************************************/

#endif /* __TEMPORAL_ANALYTICS_H__ */

